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Vitodens 100-W, B1HA series & B1KA Combi Technical Data 

IN THE COMMONWEALTH OF MASSACHUSETTS...

-  this product shall be installed by a licensed plumber 

 

or gas fitter.

-  the flexible connector (if used) may not exceed 36”.

-  any level type shutoff used must be of tee handle type.

Boiler location

As a direct vent appliance, the Vitodens 100-W may 

be installed for room air independent operation (sealed 

combustion direct vent) regardless of size and ventilation 

method of the room in which it is located.
The Vitodens 100-W may be installed, for example, in the 

main living area of a house, in non-ventilated utility rooms, 

cupboards, closets and alcoves with no clearance required 

from combustible materials, as well as in attics with a 

direct outlet for the flue gas/fresh air system. Follow all 

local and national codes.

Flue gas system

Viessmann coaxial PPS (Polypropylene - flame retardant) 

concentric flue gas/fresh air systems and two-pipe 

stainless steel/CPVC systems for room air independent 

operation (sealed combustion) and side wall venting are 

tested to ANSI Z21.13 - CSA 4.9 standards (latest edition) 

and are certified together with the Vitodens 100-W boiler 

as a constructional unit. The Vitodens 100-W boiler may 

also be vented vertically or horizontally, using a metallic 

AL29-4C® special stainless steel, or non-metallic CPVC 

single-wall, room air dependent venting system (UL/ULC 

listed for category IV).
For a more detailed description of the direct vent and 

single-wall vent system, please refer to the Vitodens 

Venting System Installation Instructions.

Flue gas temperature protection

Viessmann coaxial PPS (Polypropylene - flame retardant) 

flue pipes used for the Vitodens 100-W are rated for max. 

flue gas temperatures of up to 230°F (110°C).
Flue gas temperature protection is also included although 

the maximum permissible flue gas temperature will not 

be exceeded in any operating condition or in the event of 

malfunctioning.

Low water cut-off

The Vitodens 100 boiler is certified with an internal flow 

switch / sensor, however a low water cut-off may be 

required by local jurisdiction. 

If required, an approved type low water cut-off device 

must be provided by the heating contractor. 

Do not install an isolation valve between the boiler and the 

low water cut-off. 

System layout

  The max. boiler water temperature for ...

 

-space heating is 176°F (80°C). 

 

-DHW production is 176°F (80°C).

 

To minimize distribution losses, Viessmann  

 

 

recommends that the heating and domestic hot

   water systems be based on a maximum boiler    

 

supply temperature of 158°F (70°C).

  Due to the low return temperatures

 

required for gas condensing, avoid the use of mixing  

 

valves in the heating circuit whenever possible. 

 

If mixing valves are required, e.g. for multi-circuit  

 

systems or underfloor heating systems, only 3-way  

 

mixing valves may be used.

 

Do not use 4-way mixing valves in a system with  

 condensing 

boilers.

Water connections

Vitodens 100-W boilers can be used in any fully pumped 

hot water heating system.

Minimum system pressure is 12 psig (0.8 bar).
Chemical corrosion protection products

Corrosion does not typically occur in sealed heating 

systems which have been correctly installed and are 

correctly operated.
Many manufacturers of plastic pipes recommend the 

use of chemical additives. In this case, only commercially 

available corrosion protection products that have been 

approved for boilers with domestic hot water heating 

via single-wall heat exchangers (instantaneous plate 

heat exchangers or DHW tanks) may be used.

Underfloor heating systems

For underfloor heating systems Viessmann recommends 

the use of plastic tubing with an oxygen diffusion barrier

in order to prevent the diffusion of oxygen through tubing. 
If plastic tubing without an oxygen diffusion barrier is used 

in underfloor heating systems, Viessmann recommends 

that such systems be separated from the boiler with a 

heat exchanger.

Water Conditions for DHW B1KA 35, 125

Media: pH value 6.5 to 12, glycol max. 30%
DHW (max. hardness): Chloride up to 250 mg/L
 

Hardness up to 358 ppm

 

(= max. 0.278 kg/m

3

 lime deposit)

System Design Considerations

Design

Содержание Vitodens 100-W 125

Страница 1: ...put 21 to 125 MBH 6 2 to 36 6 kW Model Nos and pricing see Price List Gas Fired Wall Mounted Condensing Boiler with modulating stainless steel MatriX cylinder burner stainless steel Inox Radial heat e...

Страница 2: ...t 1 meter Easy installation service and maintenance with all pipe connections located at the bottom and serviceable components including electrical connections easily accessible from the front Multipl...

Страница 3: ...steel heat exchanger B Stainless steel MatriX cylinder burner C Burner blower D Gas and hydronic connections E Boiler control Standard Equipment Wall mount boiler and installation fittings c w 30 psi...

Страница 4: ...L 1 02 3 88 1 02 3 88 1 02 3 88 Boiler max flow rate 4 GPM L h 6 2 1400 6 2 1400 6 2 1400 Max operating pressure max allowable working pressure at 210 F 99 C psig bar 45 3 45 3 45 3 Boiler water temp...

Страница 5: ...m 2e 60 2e 60 2e 60 Combustion air supply coaxial connection 8 single outer in mm 4 100 2e 60 4 100 2e 60 4 100 2e 60 Noise level at 1 meter at full load at partial load dB dB 46 9 41 1 51 6 41 1 51 6...

Страница 6: ...i 150 Test pressure psi 300 Integrated pump flow rate DHW production 23 ft 9 8 m Head pressure Heating system operation with system side additional drop in pressure of max 6 ft of water 1 8 m USG min...

Страница 7: ...male thread E Combustion air opening for double pipe system F Combustion air opening for coaxial system G For B1HA series DHW tank heating supply For B1KA combi DHW H For B1HA series DHW tank heating...

Страница 8: ...W B1HA series and B1KA Legend A DHW tank heating supply for B1HA boilers DHW for B1KA boiler B DHW tank heating return for B1HA boilers DCW for B1KA boiler BWR Boiler water return BWS Boiler water su...

Страница 9: ...material or UL ULC listed CPVC gas vent material The zero inches vent clearance to combustibles for the Vitodens 100 W boiler supercedes the clearance to combustibles listing that appears on the speci...

Страница 10: ...or minimum flow rate of the Vitodens 100 W boiler An alternative method may be used such as primary secondary piping using closely spaced tees A low loss header offers additional benefits not provided...

Страница 11: ...max 130 W min 80 Built in pump Residual head Grundfos UPS15 78 three speed heating circuit DHW production pump for Vitodens 100 W B1HA 26 35 94 125 and B1KA 35 125 boilers in the factory setting the...

Страница 12: ...HW requirement for a single family house 0 Central DHW requirement for a multi family house Decentralized DHW requirement for a multi family house Number of draw points One draw point 0 Several draw p...

Страница 13: ...illustrates the changes in the outlet temperature subject to the flow rate at the tap If greater volume max flow rate through heat exchanger 3 7 GPM of water is required cold water needs to be mixed w...

Страница 14: ...technical information on DHW storage tanks see the Vitocell Technical Data Manual Mounting Vitodens 100 W boiler Installation Boiler mounting bracket and frame 1 Attach the wall mounting bracket supp...

Страница 15: ...of operation In some cases one granulate fill may last an entire year Contact Viessmann to order a neutralization unit for the Vitodens 100 W boiler See Viessmann Price List for order information The...

Страница 16: ...ature External heat demand OpenTherm OT or OT input module 0 10VDC accessory Viessmann outdoor temperature sensor OTS field wiring OpenTherm OT field wiring Instantaneous DHW control B1KA The control...

Страница 17: ...flow rate of your application Legend Vprimary Boiler circuit flow rate Vsecondary Heating circuit flow rate Vbypass Bypass flow rate Qprimary Heat supplied by boiler Qsecondary Heat consumed by system...

Страница 18: ...iessmann NTC 10K ohms 77 F 25 C Outdoor Temperature Sensor OTS Sensor location North or northwest wall of building 80 to 100 in 2 to 2 5 m above ground or in case of a multi storey building approximat...

Страница 19: ...a forced draft design The benefits of forced draft systems are lower component temperatures direct air fuel connection premix for improved mixing and longer service life of the boiler due to mild to m...

Страница 20: ...se of a low loss header is recommended if the water flow rate is less than 1 7 GPM 400 L h or more than 6 2 GPM 1400 L h The low loss header is available as accessory part Maximum Flow Rates Ensure th...

Страница 21: ...is available as accessory part DHW supply and return piping between boiler DHW connections and the Viessmann DHW tank connections shall be a minimum of 1 in nominal pipe diameter irrespective of the...

Страница 22: ...than 1 7 GPM 400 L h or more than 6 2 GPM 1400 L h The low loss header is available as an accessory part DHW supply and return piping between boiler DHW connections and the Viessmann DHW tank connecti...

Страница 23: ...al head for the heating system side is 4 3 ft of water column at the boiler maximum flow rate of 6 2 GPM System Layout 4 Model B1KA 35 125 Output MBH 117 t 30 F 17 C rise GPM L h 7 8 1772 35 F 19 5 C...

Страница 24: ...F 17 C rise GPM L h 7 8 1772 35 F 19 5 C rise GPM L h 6 7 1522 40 F 22 C rise GPM L h 5 9 1328 Requires low loss header or closely spaced tees Legend AV Air vent PRV Pressure relief valve boiler DPRV...

Страница 25: ...1328 Requires low loss header or closely spaced tees Legend AV Air vent PRV Pressure relief valve boiler DPRV Pressure relief valve DHW 150 psi WSE Water softener equipment DHW Domestic hot water DCW...

Страница 26: ...cut off The Vitodens 100 boiler is certified with an internal flow switch sensor however a low water cut off may be required by local jurisdiction If required an approved type low water cut off devic...

Страница 27: ...ifreeze content is 50 for the B1HA 26 35 94 125 and 30 for the B1KA 35 125 Do not use antifreeze other than specifically made for hot water heating systems The system may also contain components which...

Страница 28: ...00 80 125 100 150 Maximum equivalent length ft m 82 25 98 30 118 36 Coaxial horizontally vented PP s Viessmann supplied Vent system diameter mm 60 100 80 125 100 150 Maximum equivalent length ft m 82...

Страница 29: ...ied Flue gas CPVC and stainless steel field supplied PP s Viessmann supplied Vent system diameter in 2 3 4 Maximum equivalent length ft m 98 30 164 50 200 61 Combustion air CPVC PVC ABS and stainless...

Страница 30: ...ft m 86 20 164 50 200 61 CPVC and stainless steel field supplied PP s Viessmann supplied Single pipe system room air dependant vertically vented Vent system diameter in 2 3 4 Maximum equivalent length...

Страница 31: ...er in 80 flex 2 in comb 80 100 Maximum equivalent length ft m 65 20 123 37 150 46 Combustion air CPVC PVC ABS and stainless steel field supplied Flue gas PP s Viessmann supplied Flexible single pipe s...

Страница 32: ...F 40 40 35 31 25 13 20 4 18 0 16 3 14 7 12 10 10 14 9 16 8 18 7 19 6 21 5 23 4 25 3 27 2 28 1 30 0 32 1 34 2 36 3 37 4 39 5 41 6 43 7 45 8 46 9 48 10 50 12 54 14 57 16 61 18 64 20 68 25 77 30 86 35 95...

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